Actuating mechanism or mechanical movement for pressing machines



Nam 13, M280 r E. Avis ACTUATING MECHANISM OR MECHANICAL'MOVEMENT FOR PRESSING MACHINES Filed April is JWM/MW BY /M Patented Nov. 13, UNITED?" STATES P TE T-ore 1,691,646 ICE.

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- Application liled Apri1 91926. Serial nbQ 100,985.

This-invention relates to pressing machines I and has for its-object a particularly simple compact and efiicient actuating mechanism for the move1fle'element or press head of the machme; per se, forms no pa o "tion but forms the subject matter of another I machine whereby a powerful actuating mechanism can be located within a comparatively small space or within the base of the-pressing. machine; I

' The invention 'con'sists'in the novel features 0 and inthecombinationsmand constructions hereinafter set forth and claimed.

In describing this invention, vreference is had to the accompanying draw-in s in which like characters designate corresponding parts in all theviews,

Figure 1 is a side elevation, partlyinsecplication bein application, the subjectmatter of this ap-.

g the actuating mechanism for the lever 7.

v The prime mover is a reciprocating element as a pistonrod 9 connected to a piston movable in a cylinder 10, the cylinder 10 and the rod 9 being here shown as arranged in 'horizontal position and extending forwardly and 'rearwardly in the hollow base 4. The connecthins between the'rod-Q and thedriven eleit comprises a. rotatable member here shown tion, I of :a pressing machine embodying my .invention- A Y Figure 2is ra-front elevation oi parts seen 2 inFigure L; J h is .an enlarged fragmentary see- V Figure 3 tional view showing Figure 4 is the-actuating mechanism an'enlarged fragmentary side a fast andcomparatively great movement of .-elevation of a portion of the actuating mechp ,BIld at 14 to the lower end of the lever 5.

ment or lever 5, which connections first in crease the motion ot the rod 9 and then reduce as';a-ge'ar%11 mounted on asuit'able transverse stud at'theouter end of the piston rod 9 and a link 12 mounted at one end on an eccentric pin 13 on the gear 11 and pivoted at its other 7 5 Thus, the gear moves reciprocally with the rod 9" Means is provided for rolling the gear as a rack 15 meshing with the gear. As here shown, there are two gears mounted on oposite sides of the piston rod and each mesh with therack 15. e 1

In operation, as best seen in Figure 4, the movement oithe piston rod is increased during the initial, movement thereof bythe fact that the eccentric pin 13 is carried during the rolling of the gear forwardly in the same dithe driven element and is thereafter reduced .toeflt'ect a powerful but short movement o' 3 1the'driven element upon a long movement of the prime mover. V a I r The actuating'mechanism is here shown as embodied in a pressing machine of the type u used for pressing clothes-iand laundry; and

rectionasthe rod-is moving, so that the lever 5 partakes of the movement of the rod plus f -the rolling movementof the gear and the head I 2 is brought down toward the buck 1 quicklg. When the head 2 is brought down on the "buck, the gear 11 has made substantially a half revolution as seen in Figure 1 and dur- =ing the remainder of'the power stroke of the n the'pressing machine Shere shown-in which my invention is embodied comprises a lbuck 1 and a head 2 movable toward and from the? buck, the buck being mounted upon a bracket I ment of the pin 13. Hence, the motion of the or goose neck 3 which in turn is mounted upon 4 a base 4 and the-head being carried by the forward arm of a yoke or lever 5 pivoted between its ends at 6 to an upright rising from theframe and having its other arm 7 extend- 4 ing into the frame and connected to the actulever constitutes the piston, which --is comparativelv'long, the'eccentric pin 13 moves rearwardly so that the movement of the lever 9- is the difierience between the movement of the rod and the movepiston rod is transferred through a reduction, 1 00 leverage so that a comparativelv long movemanner as by handles designated 16, there being two handles both of which must be operated during the closing of the press in order to keep both hands out of danger of shown herein.

being caught in the press. The control of the motive fluid to the cylinder forms nopart of this invention and is mnnecessary to""*aI 1 7 understanding thereof.

The press is opened 20 to the lower arm of the lever 5. During .the closing of the press by power, obviously,

the spring will be tensioned and when'the power is released in the cylinder 10, the spring will react and open the press. I ,t Y i The actuating mechanism here shownis particularly adapted to be mountedin a small space as the base of is in starting position between the axis of the gear and the prime mover and, movable through more than one half of a revolution and approximately three quarters of ,a revolution during the rocking of the gear and the movement of -the prime mover in one direc tion, means'for rockingthe gear comprising a stationary rack with which" the pinion meshes and a link connecting the eccentric pin and the oscillating driven element.

2. A pressing machine comprising a base, a buck mounted on the base, ahead movable and the'parts restored totheir starting positions by a counterbalance spring 17 suitably connectedto a shaft 18 to" turn the same, the shaft having a winding; Y drum 19 thereon which is connected by a cable the pressing machine toward and from the b'uck,'a lever carrying the head, the lever being pivoted to the base 'in-the'rear of the buck, means fo'rractuating the lever comprising a cylinder arranged in horizontal position in the frame beneath the buck, a piston movable in the cylinder and 7 having a reciprocally movable rod, the :lever sup-porting the head having a downwardly P extending arm, and motion transmittingv mechanism betweenthe rod and said armincluding an element movable with' the rod and also relatively thereto during themovement [of the rod and'means connecting s'aidfelement and the lever arm 'to transmit the combined movement of-said. element with the rod plus the relative movement of said element to the lever arm." p I 3. A pressing machine comprising a hollow able toward and from thebase, a lever carrying the head pivoted intermediate .of its ends to the base and having an arm extending into the base, actuating means for said lever located in the baseinclu'ding a reciprocating prime mover and connections between the prime mover and said arm comprising a rotatable member movable withtheprimemover during the reciprocating movement thereof, a

' base, a buck mounted on the base, a. head movlink pivoted at oneend eccentrica-lly to the rotatable member andiat its other end to said arm andmeans for rolling said member during the reciprocating movement thereof.

In; testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga and in the State of New York, this 6th day of April, 1926. v

ERNEST-DAVIS. 

